Display apparatus

Abstract

A display apparatus including a substrate, a light-emitting device and a bank structure is provided. The light-emitting device is bonded to the substrate, and has a forward light-emitting surface, a first edge and a second edge. A length of the first edge along a first direction is greater than a length of the second edge along a second direction. The first direction and the second direction intersect each other. The bank structure has a first portion and a second portion. The first portion is disposed facing the first edge along the second direction. The second portion is disposed facing the second edge along the first direction. In a normal direction of the substrate surface, a first top surface of the first portion is lower than the forward light-emitting surface, and a second top surface of the second portion is higher than the forward light-emitting surface.

What is claimed is: 
     
         1 . A display apparatus, comprising:
 a substrate;   a light-emitting device, bonded to the substrate, the light-emitting device has a forward light-emitting surface facing away from the substrate and a first edge and a second edge defining the forward light-emitting surface, the first edge and the second edge extend in a first direction and a second direction respectively, a length of the first edge along the first direction is greater than a length of the second edge along the second direction, and the first direction and the second direction are parallel to a substrate surface of the substrate and intersect each other; and   a bank structure, disposed on the substrate, and surrounding the light-emitting device, the bank structure has a first portion and a second portion, the first portion is disposed facing the first edge of the light-emitting device along the second direction, the second portion is disposed facing the second edge of the light-emitting device along the first direction, wherein the first portion and the second portion of the bank structure respectively have a first top surface and a second top surface facing away from the substrate, in a normal direction of the substrate surface, the first top surface is lower than the forward light-emitting surface of the light-emitting device, and the second top surface is higher than the forward light-emitting surface of the light-emitting device.   
     
     
         2 . The display apparatus according to  claim 1 , further comprising:
 a light-shielding structure, disposed on the bank structure, wherein the bank structure further has a first opening overlapping the light-emitting device, and the light-shielding structure has a second opening overlapping the first opening.   
     
     
         3 . The display apparatus according to  claim 2 , wherein the light-shielding structure includes:
 a first light-shielding layer, disposed on the first portion of the bank structure, and overlapping the first portion; and   a second light-shielding layer, disposed on the second portion of the bank structure, and overlapping the second portion, wherein the first light-shielding layer and the second light-shielding layer respectively have a first height and a second height relative to the substrate surface, and the second height is greater than the first height.   
     
     
         4 . The display apparatus according to  claim 2 , wherein the light-shielding structure further has a first light-shielding edge and a second light-shielding edge defining the second opening, the first light-shielding edge and the second light-shielding edge extend in the first direction and the second direction respectively, a distance between the first light-shielding edge and the first edge along the second direction is greater than a distance between the second light-shielding edge and the second edge along the first direction. 
     
     
         5 . The display apparatus according to  claim 2 , wherein the light-emitting device has a first length along the first direction and a second length along the second direction, the second opening of the light-shielding structure has a third length along the first direction and a fourth length along the second direction, the first length is greater than the second length, the third length is greater than the first length, the fourth length is greater than the second length, and a difference between the fourth length and the second length is greater than a difference between the third length and the first length. 
     
     
         6 . The display apparatus according to  claim 1 , wherein the bank structure includes:
 a first bank, surrounding the light-emitting device, and covering a lateral light-emitting surface, and   a second bank, disposed on the first bank, and located on opposite sides of the light-emitting device along the first direction, wherein the first bank is provided with the first top surface, the second bank is provided with the second top surface, and in the normal direction of the substrate surface, the second bank does not overlap the first top surface and the forward light-emitting surface.   
     
     
         7 . The display apparatus according to  claim 6 , further comprising:
 a light-transmitting layer, disposed between the first bank and the second bank.   
     
     
         8 . The display apparatus according to  claim 1 , wherein the light-emitting device includes a first-type semiconductor layer, a light-emitting layer and a second-type semiconductor layer sequentially stacked on the substrate surface, the forward light-emitting surface is provided on one side of the second-type semiconductor layer facing away from the substrate, and in the normal direction of the substrate, the first top surface of the first portion of the bank structure is higher than the light-emitting layer. 
     
     
         9 . The display apparatus according to  claim 1 , wherein the bank structure further has a first opening overlapping the light-emitting device, the first opening overlaps the forward light-emitting surface of the light-emitting device, and a scattering layer is provided in the first opening. 
     
     
         10 . The display apparatus according to  claim 9 , wherein a color conversion layer is further provided in the first opening. 
     
     
         11 . The display apparatus according to  claim 9 , further comprising:
 a light-shielding structure, disposed on the bank structure, and having a second opening overlapping the first opening, wherein a light filter layer is provided in the second opening.   
     
     
         12 . The display apparatus according to  claim 9 , further comprising:
 a light-shielding structure, disposed on the bank structure, and having a second opening overlapping the first opening, wherein a lens structure is provided in the second opening.